The prompt had this backwards. "Never output an FDI tooth code unless the
speaker used FDI notation. Prefer arch + side + position" pushed the model
to decompose speech into "upper / patient_right / six", so the clinician
effectively had to *describe* every tooth. Saying "دندون بیست و شش" — the
way a dentist actually dictates — was the unsupported path.
FDI is what clinicians speak, so the prompt now teaches the notation
instead of forbidding it: first digit = quadrant from the patient's own
point of view, second digit = position from the midline. arch/side/position
stays as the reading of a *described* tooth, where a single digit is a
position and the quadrant comes from words.
Two guards come with it, because bare numbers are now teeth: a single digit
alone still refuses to guess a quadrant, and dates, counts and quantities
are explicitly not teeth.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Amin Mousavi
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